Oil loss SD4 190hp Diesel

Hello together, have an oil loss with my Evoque. Are always dripping between the transmission and engine as well as slightly higher up the distribution gear. Is on at least engine oil. Can it be the seal from the oil tank or the crankshaft immersing? The inner toothed crane disc where the torque converter is flanged is dry. I attached pictures once. Vehicle is built in 2012 and has run 64000km.